(krə-shĕn′dō)n. pl. cres·cen·dos or cres·cen·di (-dē)1. Abbr. cr. Musica. A gradual increase in the volume or intensity of sound in a passage.b. A passage played with a gradual increase in volume or intensity.2.a. A steady increase in intensity or force: “insisted [that] all paragraphs … should be structured as a crescendo rising to a climactic last sentence” (Henry A. Kissinger).b. Usage Problem The climactic point or moment after such a progression: “The attacks … began in December … and reached a crescendo during [the president’s] September visit” (Foreign Affairs).adj.Gradually increasing in volume, force, or intensity.adv. MusicWith a crescendo.